Some of the factors included to be considered when choosing a hardness tester is usually very general. The first thing that has to be considered is what the tester would be for. Knowing what the tester would be for would be one key component in determining whether or not the tester that should be bought should be one of the most expensive ones or just the ones that are not that expensive but used not so much as well. Another thing to consider is how much the tester is. The price of hardness testers is not a joke and must always be taken highly into consideration just like other stuff to be purchased.